Dynamo suspension.



C. HARTMANN.

DYNAMO SUSPENSION.

APPLICATION FILED IuLY 30,19I5.

UUR/VE YS aan naar nin.

CARL HARTMANN/OF LANCASTER, NEVJ YORK, ASSIG-NOR TO GOULD COUPLER COMPANY, A CORPORATION F NEW YORK.

ti 'i DYNAMO SUSPENSION.

1,302l3'?. Spcation 0f Letters Patent llateiited Apr. 29, 1919. i Application led July 30, 1915. Serial No. 42,681.

To all @hom t may Gomera; adjusted position, screw bolts 16 and 17 are Be it known that l, CARL HARTMANN, a provided, operating in lugs 19 on the undersubJect of the Emperor of Germany, and a neath side oi the member 11 and bearing resident of Lancaster, county of Erie, State against the depending flange of the cross of New York, have invented certain new bar 9. The member 11 is provided with de- 60 and useful Improvements in Dynamo Suspending earsl 20, carrying a pivot rod 21, pensions, of which the following is a speciand the dynamo (Sis provided with integral -ficatioiL upwardly extending lugs 22, through which My invention relates to improvements in the pivot rod 91 passes, so thatthefdynamo dynamo suspensions, more particularly for is pivotally suspended directly Jtrom the sup- 65 use on railway cars, where a dynamo is used porting membeigl1, and is adapted to swing for lighting purposes. The main object of toward and i'rom the driving axle over which my invention is to provide a simple and the belt 5 passes. The member 11`is also efficient arrangement Jfor suspending the provided with two depending` ears 24, be- ]l dynamo which will be easily accessible for tween which is pivoted a link, the lower70 inspection and repair. Further objects, eaend of which link is forked, and one end of tures and advantages will more Clearly np# a'rlink 2 6 is pivot-ed between the forked porpear from the ldetailed description given be- Ations oi' link Q5. The other end of link 26 is low, taken in connection with the accom pivotally secured to the dynamo by. being 2@ `pgllyiljlg drawings which form 3, pari', 0f this. engaged Wltll a pivot lOd 27, paSS-llig thlougll 75 specification. lugs integral with the dynamo. The link Q5 1n the drawings Figure 1 i5 a Side View `or" 1S provided with a downwardly extending part of a. railway car having my invention arm 28, to which is secured one end of a in one form applied thereto, certain parts' Sprlng 29. The other end of the spring is being 'broken away and Shown in section to A connected to a screw threaded rod 30, pass- 90 more clearly'illustrate the same. Fig 2 ie ping' loosely through an aperture in van arm y an end view of parts shown in Fig. 1. Fig, 31, extending downwardly from the mem- 3 is a view looking upwardly, `.showing the ber 11. There 1s screw threaded on the outer arrangement' of the supporting frame on the end of the rod 30 a hand nut 3Q, so that upon M -cross members. Fig. 4 is a detail of parts turning the hand nut 32, the rod 8O is pulled a5 shown in 1. illustrating the dynamo in outwardly through the arm 31, thus increasj a different position. y l ing the stretch of the spring 29, so as to ad- Referring to lthe drawings', 1 represente a Just thetension thereo It will be seen that car body provided with a center beam 2, one thc'spring Q9 tends to swing theV link 25 350i the car axles being shown at 3, provided 'downwardly and thus force the link :26 90 with a pulley l driven by a belt 5, which in' dOwnWaldly and to the rlght, as'shown in turn drives the dynamo 6. the dynamo 6 hav-4 Figs. 1 and 1, and 'so tend to `swing the inga pulley 7 over which the belt 5 passes, dynamo away from the driving axle to keep 8 and 9 represent horizontal transverse mem; the proper tension on the driving belt; In

W bersor crossties, one endof each of which thep'ositionoi the parts shown inFig 1, y95

` is bolted to the 'center beam at 10 and the it willbe seen that the dynamo hangs verotherend of which .is secured tof the under' tically and therefore its weight does not tend '-neath side of thercar body at the o uter edge to increasethe tensionronfthe belt When thereof." Resting' upon the transversememthe distance between the axis of the dynamo fk51bers'8 and 9 Vis supporting member 11, havn* and the driving axle is increased. the dynamo 109 ing one end pivotally secured tolthe trans- `will swingY to thevleit, as shownl in' Fig. 4,

verse member 8 by vertical pivot bolt `1Q, and 'so` that 'inlthis position, the weight pf the ".the other end restingupou the bar 9 and addynamo will tend to increase the'` tension on instable longitudinally with respect thereto. f the belt 5. Under such conditions, however, Bolts 13 and" 14 pass through arcuate slots it will be seen th ,Y the force'with which the 105 15 in the member 11, and also through the spring 29 tends toA swing the dynamo away I transverse member 9,*'sc that the memberll from the car axle is decreased, by reason ot "may be securely held in any of its adjusted the leverage with which it acts being del "os'i'tions on the transverse members 8. and creased, so that the resultant tension on the .te 9. To further rigidly secure member 11 in belt 5 will be the same as in Fig, 1. Thus, ii@

=the spring 29 would exert effect than otherwise,

v limited to such :from the car -the tension of said spring.

.secured on top thereo as the dynamo swings back and forth,l as the distance between the driving axle and the pivot 2l varies, Ithe tension on Athe-belt will remain the same, because the more that the weight of the dynamo tends to maintain the tension on the belt, less action does the spring have to this effect. If the dynamo should swing to the right hand of the vertical, the weight of the dynamo would tend to slacken the belt, but, under such conditions, a much greater beca use of theV increasing leverage with which it acts, so that uno .der all conditions, the tension on the belt 5 l5,

is maintained substantially constant. The llinks 25 and 2G, acted upon by the spring 29, form, a toggle arrangement tension device, in `which the tension of the spring may be suitably adjusted by means of hand nut 32, andthis independently of any adjustment of the support-ing member 1l on the transverse members 8, secured to t-he underneath side of thecar body.

Although I haveV described my improvements in great detail and with respect to one embodiment thereof, I do not desire to be details except as clearly pointed out in the appended claims, since many changes and modications may be made without departing' from the spirit and scope of my invention in its broader aspects.

Having fully and clearly described my invention, what I claim as new and desire to secure by Letters Patent is:

l. A dynamo suspension having in combination with a car and its axle, two members vextending transversely of the car and secured to the underneath side of the car 40;-

body, a` supporting member secured on top thereof, means for adjusting said supporting member on the transverse members, a dynamo pivotally suspended from said support-- ing member, a belt driving the dynamo from `the ycar axle, and a spring tending to swing the dynamo .aroundits pivotal point away axle, and meansfor adjusting 2. A dynamo suspension having in combinatlon with a car and its axle, two-transversemembers secured to the underneath side of the car body, a supporting member secured on top thereo a dynamo pivotally suspended from said supporting member, a

belt driving the `dynamo from the car axle anda tension device comprisinga spring .op-

erated toggle ,arrangement tendingto swing the dynamo away from the car axle.

3. dynamo suspensionhaving in combmation with a car and its axle, two trans- `.verse members secured to the underneath side of the car body, a supporting member a dynamo pivotally suspendedk from said` supporting member, a

rectly to saidsupporting means beltdriving the dynamo from the car axle, and a tension device comprising a spring operated toggle arrangement tending to swing the dynamo away from the car axle, and means for adjusting the tension with which said spring tends to swing the dynamo.

4. A dynamo suspension having lin combination with a car and its axle, two transverse members secured to the underneath side of the car body, a supporting member secured on top thereo a dynamo pivotally suspended from said supporting member, a belt driving the dynamo from the car axle, a spring, means for connecting onefend of the spring with the dynamo, a rod having .one end connected to the other end of the o.'A dynamo suspension having in combination with a car and its axle, a center longitudinal beam on the car, a normally rigid supporting `means secured to said beam, a dynamo having' lugs pivotally whereby the dynamo may swing, a belt driving the, dynamo from the car axle, a spring, means connecting one end of the spring with the dynamo, spring with the supporting' means, said spring being stretched whereby it tends to swing the dynamo away from the driving axle, and means for adjusting the tension of Said spring.

6. A dynamo suspensionhaving iny combination' with a car and its axle, supporting means secured rigidly to the underneath side of the car body, a dynamo having lugs pivotally secured to whereby the dynamo may swing, a belt driving the'dynamo from the car axlea.spring, means connecting one end of the springv with thedynamo, means connecting the other-end of the spring with said spring being stretched whereby it tends to swing the dynamo awayfromfthe dr-iv'- ing axle, and meansefor adjusting-the tension of said spring.V

l. A dynamo suspension having in `com` lblnatlon with a `car said rod for adjusting `the tension of said spring.

said supporting -means A the supporting means,

secured dimeans connecting the other end of the secured to i the underneath side of the car body, a supporting member secured on top thereo-, a dynamo pivotally suspended from said supporting member, said supporting member being pivoted vertically with respect to one of said transverse members, means whereby the other end may be adjusted longitudinally of the other transverse member and a belt Jfor driving the dynamo from the car a-Xle.

9. A dynamo suspension having in combination with a car and its axle, two horizontal members secured to the underneath side oi' the oar body, a supporting member secured on top thereof, a dynamo pivotally suspended from said supporting member, said supporting member being pivoted vertically with respect to one of said transverse members, means whereby the other end may be adjusted longitudinally of the other transverse member, means Jor locking the supporting member in adjusted position, and a Copies of this patent may be obtained for bellt for driving the dynamo from the oar ax e.

10. A dynamo suspension having in combination with a car and its axle, two hori* zontal members secured to the underneath side oi the car body, a supporting member` secured on top thereof, a dynamo pivotally suspended from said supporting member, said supporting member being pivoted vertically with respect to one of said transverse members, means whereby the other end may be adjusted longitudinally of the other transverse member, means for locking the supporting member in adjusted position, and a belt for driving the dynamo from the oar axle, a spring tending to swing the dynamo away from the driving aXle and means for adjusting the tension of said spring.

In testimony whereof, l have signed my name to this specification.

CARL HARTMANN.

ve cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

